EP2S130F1020I4 Datasheet, PDF (621/768 Pages) List of Unclassifed Manufacturers – Stratix II Device Handbook, Volume 1

Configuring Stratix II and Stratix II GX Devices
download cable. Figure 7–27 shows PS configuration for Stratix II or
Stratix II GX devices using a USB Blaster, MasterBlaster, ByteBlaster II, or
ByteBlasterMV cable.
Figure 7–27. PS Configuration Using a USB Blaster, MasterBlaster, ByteBlaster II or ByteBlasterMV Cable
V_CC (1) V_CC (1)
10 kΩ
(2)
10 kΩ
V_CC (1)
10 kΩ
(2)
VCC
Stratix II or Stratix II GX
Device
MSEL3 CONF_DONE
MSEL2
nSTATUS
MSEL1
MSEL0
V_CC (1) V_CC (1)
10 kΩ 10 kΩ
GND
GND
nCE
DCLK
DATA0
nCONFIG
nCEO N.C.
Download Cable
10-Pin Male Header
(PS Mode)
Pin 1
V_CC
GND
V_IO (3)
Shield
GND
Notes to Figure 7–27:
(1) The pull-up resistor should be connected to the same supply voltage as the USB Blaster, MasterBlaster (V_IO pin),
ByteBlaster II or ByteBlasterMV cable.
(2) The pull-up resistors on DATA0 and DCLK are only needed if the download cable is the only configuration scheme
used on your board. This ensures that DATA0 and DCLK are not left floating after configuration. For example, if you
are also using a configuration device, the pull-up resistors on DATA0 and DCLK are not needed.
(3) Pin 6 of the header is a V_IO reference voltage for the MasterBlaster output driver. V_IO should match the device’s
V_CCIO. Refer to the MasterBlaster Serial/USB Communications Cable User Guide for this value. In the ByteBlasterMV
cable, this pin is a no connect. In the USB Blaster and ByteBlaster II cables, this pin is connected to nCE when it is
used for active serial programming, otherwise it is a no connect.
You can use a download cable to configure multiple Stratix II or
Stratix II GX devices by connecting each device’s nCEO pin to the
subsequent device’s nCE pin. The first device’s nCE pin is connected to
GND while its nCEO pin is connected to the nCE of the next device in the
chain. The last device’s nCE input comes from the previous device, while
its nCEO pin is left floating. All other configuration pins, nCONFIG,
nSTATUS, DCLK, DATA0, and CONF_DONE are connected to every device
in the chain. Because all CONF_DONE pins are tied together, all devices in
the chain initialize and enter user mode at the same time.
Altera Corporation
January 2008
7–69
Stratix II Device Handbook, Volume 2